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L. ,A. L'EGUUGE. QUARTZ CRUSHER.

No. 32,999. ,Patented Aug. 6, 17861.

VUNITED STATES PATENT OFFIQE.,

LOUIS F. A. LEGOUGE, OF GRASS VALLEY, CALIFORNIA.

QUARTz-cRUsi-IER.

Specication of Letters Patent No. 32,999, dated August 6, 1861.

To all 'who/m it may concern:l

Be it known that I, Louis F. A. LnGoUGE, of Grass Valley, in the county of Nevada and State of California, have invented a new and Improved Quartz-Crusher; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming a part of this specification, in which- Figure l represents a longitudinal vertical section of my invention. Fig. 2 is a transverse vertical section of the same.

Similar letters of reference in both views indicate corresponding parts.

This invention consists in the arrangement of a reciprocating cradle in combination with a series of stampers in such a manner, that by the motion of the cradle the stampers are caused to act on the quartz or other substance to be crushed.

It consists also in arranging the stampers by means of pins and cross bars in the cradle, in such a manner that the same are allowed to rise, but prevented from coming down beyond a certain point.

To enable those skilled in the art to make and use my invention I will proceed to describe its construction and operation with reference to the drawing.

A crade A, which carries the stampers B, is constructed of two rockers a, made of wood or iron or of any other suitable material and connected by cross bars b, b, c. The cross bars b', which are situated in the center of the rockers, one above the other form the guides for the stems d, of the stampers. These stampers operate in a pan C, which is secured to the bed plate or rails D, on which the cradle rests, and each of the stanipers rises and falls independently of the rest.

The stampers are suspended from the lower cross-bar by means of pins e, passing through the stems d, in such a position, that if the cradle is brought in a central position, the faces of the stampers just touch the bottom of the pan C, and the weight of the stampers themselves has a tendency to retain the cradle in this position; but if the cradle is turned down on one side or on the other, the stampers, being retained by the pins e, are raised from the bottom and the quartz or other substance to be crushed is permitted to pass under the faces of the stampers. On moving the cradle back again to its central position the quartz or other substance is crushed. Thus by imparting to the cradle a reciprocating rocking motion the stampers are caused to act on the quartz or other substanceto be crushed, precisely in the manner in which a person attempting to crush a substance by pressure would act. If the pressure is exerted on a lump of quartz or other substance in a vertical direction, much more power is required to crush it than if the power is applied by a rolling motion commencing on one side or on the other, for in the former case all the atoms of the lump have to separate simultaneously in order to allow the stamper to take effect, whereas in the latter case the separation of the atoms takes place gradually and by degrees.

The crushing power of the stampers is increased by attaching to the upper ends of their stems a box E, which may be filled with stones or other heavy material and which ought to be so arranged that each stamper has its separate weight moving up and down with it, independent of the rest as indicated by red outlines in the drawings. These weights or the box E, filled with stones or other heavy material form at the same time a suitable counterpoise to the stampers thereby facilitating the motion of the cradle. This box is adjustable on the stems el, by means of pins f, passing through holes g. Y

The cradle may be set in motion by hand or by machinery, and the action of the stampers on the quartz or other substance to be crushed is such that the crushing is effected simply by pressure, and without incurring that injurious influence on the working parts of the machine which is experienced with all such quartz Crushers, in which the crushing is effected by blows exerted by the stampers on the substance to be crushed.

My machine is very simple in its const-ruction, and easy in its operation, all its parts are durable and do not get easily out of order, and it can be cheaply put up wherever a sufficient supply of water renders the operation feasible.

Haaing thus fully described my invention what I claim as new and desire to secure by e, and cross-bar b, n combination with the Letters Patent, srstampers B, and cradle A, as and for the 10 1. The arrangement of a reciprocating purpose set forth. cradle A in combination With a series of 5 stalnpers, constructed and operating sub- L' F' A LEGOUGE' stantally in the manner and for the pur- Witnesses:

I. FIGUIER,

pose described. I

2. The arrangement of the pins or stops t CH. ANDURAR. 

